doctest-0.25.0: test/integration/testBlankline/Fib.hs

module Fib where

-- | Calculate Fibonacci number of given 'Num'.
--
-- >>> putStrLn "foo\n\nbar"
-- foo
-- <BLANKLINE>
-- bar
fib :: (Num t, Num t1) => t -> t1
fib _ = undefined